B-b
abbr. 滚珠轴承（ball bearing）；铅笔芯（double black）
🗣️ 情景例句
And have a good stay in the Big Apple.
祝您在纽约愉快。
The doctor did not reveal to him his hopeless condition.
医生没有向他透露说他的病已经没治了。
Jack was an excellent tennis player. He was able to beat anybody.
竭克是个网球健将。他天下无敌。